<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>每日待办事项</title>
    <style>
      @import url('https://fonts.googleapis.com/css?family=Arimo:400,700|Roboto+Slab:400,700');

      :root {
        font-size: calc(0.5vw + 1vh);
      }

      * {
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
      }

      body {
        min-width: 420px;
        background: #060818;
        color: #fff;
        background: linear-gradient(15deg, #d33f34 50%, #a61322 50.1%);
        height: 100vh;
        scale: 0.1;
        animation: zoom-in 1s normal forwards ease-in-out;
      }
      @keyframes zoom-in {
        0% {
          scale: 0.1;
        }
        100% {
          scale: 1;
        }
      }

      h1,
      h4 {
        font-family: 'Arimo', sans-serif;
        line-height: 1.3;
      }

      header h1 {
        font-size: 5.4rem;
        margin: 4rem auto;
      }

      span {
        font-size: 3rem;
      }

      p {
        font-family: 'Roboto Slab', serif;
      }

      a,
      a:link,
      a:active,
      a:visited {
        color: #0066aa;
        text-decoration: none;
        border-bottom: #000013 0.16rem solid;
      }

      a:hover {
        color: #000013;
        border-bottom: #0066aa 0.16rem solid;
      }

      header,
      footer {
        width: 40rem;
        margin: 2rem auto;
        text-align: center;
      }

      .add-task-container {
        width: 50%;
        justify-content: space-between;
        display: flex;
        margin: 0 auto;
        padding: 10px;
        position: relative;
        background: #0e1726;
        overflow: hidden;
        border-radius: 10px;
        border: 1px solid #1b2e4b;
        box-shadow: 18px 20px 10.3px -23px rgb(0 0 0 / 15%);
        font-size: 18px;
      }

      .main-container {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
      }

      .columns {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-align: start;
        -ms-flex-align: start;
        align-items: flex-start;
        margin: 1.6rem auto;
        width: 80%;
        color: #bfc9d4;
      }

      .column {
        width: 100%;
        flex: 1;
        margin: 0 10px;
        position: relative;
        background: #0e1726;
        overflow: hidden;
        border-radius: 10px;
        border: 1px solid #1b2e4b;
        box-shadow: 18px 20px 10.3px -23px rgb(0 0 0 / 15%);
      }

      .column-header {
        font-size: 17px;
        border-bottom: #000013 0.2rem solid;
      }

      .column-header h4 {
        text-align: center;
      }

      .task-list {
        min-height: 3rem;
      }

      ul {
        list-style-type: none;
        margin: 0;
        padding: 0;
      }

      li {
        list-style-type: none;
      }

      .column-button {
        text-align: center;
        padding: 0.1rem;
      }

      .button {
        font-family: 'Arimo', sans-serif;
        font-weight: 700;
        border: #000013 0.14rem solid;
        border-radius: 0.2rem;
        color: #000013;
        padding: 0.6rem 1rem;
        margin-bottom: 0.3rem;
        cursor: pointer;
      }

      .delete-button {
        background-color: #ff4444;
        margin: 0.1rem auto 0.6rem auto;
      }

      .delete-button:hover {
        background-color: #fa7070;
      }

      .add-button {
        background-color: #ffcb1e;
        padding: 0 1rem;
        height: 3.8rem;
        width: 10rem;
        margin-top: 0.6rem;
      }

      .add-button:hover {
        background-color: #ffdd6e;
      }

      .task {
        background: #1b2e4b;
        margin: 0.4rem;
        height: 4rem;
        display: flex;
        -webkit-box-pack: center;
        justify-content: center;
        list-style-type: none;
        transition: all 0.3s;
        cursor: move;
        text-align: center;
        vertical-align: middle;
        border-radius: 10px;
        font-size: 15px;
      }

      #taskText {
        border: #161515 0.15rem solid;
        border-radius: 0.2rem;
        text-align: center;
        font-family: 'Roboto Slab', serif;
        height: 4rem;
        width: 90%;
        margin: auto 0.8rem auto 0.1rem;
        background: #1b2e4b;
        color: #bfc9d4 !important;
      }

      .task p {
        margin: auto;
      }

      /* Dragula CSS Release 3.2.0 from: https://github.com/bevacqua/dragula */

      .gu-mirror {
        position: fixed !important;
        margin: 0 !important;
        z-index: 9999 !important;
        opacity: 0.8;
        -ms-filter: 'progid:DXImageTransform.Microsoft.Alpha(Opacity=80)';
        filter: alpha(opacity=80);
      }

      .gu-hide {
        display: none !important;
      }

      .gu-unselectable {
        -webkit-user-select: none !important;
        -moz-user-select: none !important;
        -ms-user-select: none !important;
        user-select: none !important;
      }

      .gu-transit {
        opacity: 0.2;
        -ms-filter: 'progid:DXImageTransform.Microsoft.Alpha(Opacity=20)';
        filter: alpha(opacity=20);
        border: 1px solid #00ff7f !important;
        box-shadow: 1px 0 4px 1px #00ff7f !important;
        transform: scale(1.02);
      }
      .gu-mirror {
        border: 1px solid #00ff7f !important;
        box-shadow: 1px 0 4px 1px #00ff7f !important;
        transform: scale(1.02);
      }
    </style>
  </head>
  <body>
    <!-- partial:index.partial.html -->
    <header>
      <h1>每日待办事项</h1>
    </header>

    <div class="add-task-container">
      <input
        type="text"
        maxlength="12"
        id="taskText"
        onkeydown="if (event.keyCode == 13) document.getElementById('add').click()"
      />
      <button id="add" class="button add-button" onclick="addTask()">
        添加
      </button>
    </div>

    <div class="main-container">
      <ul class="columns">
        <li class="column to-do-column">
          <div class="column-header">
            <h4>🌟 To Do</h4>
          </div>
          <ul class="task-list" id="to-do">
            <li class="task">
              <p>锻炼</p>
            </li>
            <li class="task">
              <p>做饭</p>
            </li>
            <li class="task">
              <p>打扫</p>
            </li>
            <li class="task">
              <p>阅读</p>
            </li>
          </ul>
        </li>

        <li class="column doing-column">
          <div class="column-header">
            <h4>💫 Doing</h4>
          </div>
          <ul class="task-list" id="doing">
            <li class="task">
              <p>冥想</p>
            </li>
            <li class="task">
              <p>工作</p>
            </li>
            <li class="task">
              <p>浇花</p>
            </li>
          </ul>
        </li>

        <li class="column done-column">
          <div class="column-header">
            <h4>🏆 Done</h4>
          </div>
          <ul class="task-list" id="done">
            <li class="task">
              <p>瑜伽</p>
            </li>
            <li class="task">
              <p>购物</p>
            </li>
          </ul>
        </li>

        <li class="column trash-column">
          <div class="column-header">
            <h4>❌ Trash</h4>
          </div>
          <ul class="task-list" id="trash">
            <li class="task">
              <p>发邮件</p>
            </li>
            <li class="task">
              <p>看电视</p>
            </li>
          </ul>
          <div class="column-button">
            <button class="button delete-button" onclick="emptyTrash()">
              删除
            </button>
          </div>
        </li>
      </ul>
    </div>

    <script src="https://cdnjs.cloudflare.com/ajax/libs/dragula/3.7.2/dragula.js"></script>
    <script>
      /* Custom Dragula JS */
      dragula([
        document.getElementById('to-do'),
        document.getElementById('doing'),
        document.getElementById('done'),
        document.getElementById('trash'),
      ]);
      removeOnSpill: false
        .on('drag', function (el) {
          el.className.replace('ex-moved', '');
        })
        .on('drop', function (el) {
          el.className += 'ex-moved';
        })
        .on('over', function (el, container) {
          container.className += 'ex-over';
        })
        .on('out', function (el, container) {
          container.className.replace('ex-over', '');
        });

      /* Vanilla JS to add a new task */
      function addTask() {
        /* Get task text from input */
        var inputTask = document.getElementById('taskText').value;
        /* Add task to the 'To Do' column */
        document.getElementById('to-do').innerHTML +=
          "<li class='task'><p>" + inputTask + '</p></li>';
        /* Clear task text from input after adding task */
        document.getElementById('taskText').value = '';
      }

      /* Vanilla JS to delete tasks in 'Trash' column */
      function emptyTrash() {
        /* Clear tasks from 'Trash' column */
        document.getElementById('trash').innerHTML = '';
      }
    </script>
  </body>
</html>
